Characterization of low-noise quasi-optical SIS mixers for the submillimeter band
MC Gaidis, HG LeDuc, M Bin, D Miller… - IEEE transactions on …, 1996 - ieeexplore.ieee.org
MC Gaidis, HG LeDuc, M Bin, D Miller, JA Stern, J Zmuidzinas
IEEE transactions on Microwave Theory and Techniques, 1996•ieeexplore.ieee.orgWe report on the development of low-noise quasi-optical SIS mixers for the frequency range
400-850 GHz. The mixers utilize twin-slot antennas, two-junction tuning circuits, and Nb-
trilayer junctions. Fourier-transform spectrometry has been used to verify that the frequency
response of the devices is well predicted by computer simulations. The 400-850 GHz
frequency band can be covered with four separate fixed-tuned mixers. We measure
uncorrected double-sideband receiver noise temperatures around 5h/spl nu//k/sub B/to 700 …
400-850 GHz. The mixers utilize twin-slot antennas, two-junction tuning circuits, and Nb-
trilayer junctions. Fourier-transform spectrometry has been used to verify that the frequency
response of the devices is well predicted by computer simulations. The 400-850 GHz
frequency band can be covered with four separate fixed-tuned mixers. We measure
uncorrected double-sideband receiver noise temperatures around 5h/spl nu//k/sub B/to 700 …
We report on the development of low-noise quasi-optical SIS mixers for the frequency range 400-850 GHz. The mixers utilize twin-slot antennas, two-junction tuning circuits, and Nb-trilayer junctions. Fourier-transform spectrometry has been used to verify that the frequency response of the devices is well predicted by computer simulations. The 400-850 GHz frequency band can be covered with four separate fixed-tuned mixers. We measure uncorrected double-sideband receiver noise temperatures around 5h/spl nu//k/sub B/ to 700 GHz, and better than 540 K at 808 GHz. These results are among the best reported to date for broadband heterodyne receivers.
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